Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of silver-containing antibacterial solution and preparation method thereof

An antibacterial solution and solution technology, applied in metal processing equipment, transportation and packaging, etc., can solve the problems of poor system stability and lack of industrial application, and achieve the advantages of easy industrial processing, not easy to oxidize, not easy to agglomerate and precipitate Effect

Active Publication Date: 2018-04-03
ZHANGJIAGANG NELLNANO TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At home and abroad, there have been related studies on the preparation of silver-containing antibacterial solutions by using polyacrylamide, cetyltrimethylammonium bromide, oleamide, amino-terminated hyperbranched compounds and their quaternary ammonium salts, such as the Chinese invention patent "Nano silver aqueous solution "Preparation method" (CN101318224A), discloses a method for preparing nano-silver solution by mixing the amino-terminated hyperbranched compound and its quaternary ammonium salt with silver nitrate. Silver nitrate solution with a molar concentration of 0.01-0.5mol / L was mixed and stirred at 10-100°C for 1-120 minutes to obtain a nano-silver aqueous solution with a particle size of 1-100nm, but its system stability was not good. has not yet been applied industrially

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of silver-containing antibacterial solution and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Dissolve 50ml of pentaethylenehexamine in 50ml of chloroform, add 15g of octanoyl chloride, react in ice bath for 30min, and then obtain N-octanoyl-pentaethylenehexamine through purification.

[0020] (2) Silver acetate is dissolved in deionized water to obtain a silver acetate solution whose mass concentration is 3.2g / l; N-octanoyl-pentaethylenehexamine is dissolved in deionized water to obtain a mass concentration of 10g / l N-octanoyl-pentaethylene hexamine solution;

[0021] (3) Mix the silver acetate solution with a mass concentration of 3.2 g / l and the N-octanoyl-pentaethylene hexamine solution with a mass concentration of 10 g / l at a volume ratio of 1:1, and stir at 80° C. for 10 min, namely Obtain a stable silver-containing antibacterial solution.

[0022] Adopt GB 15979-2002 Hygienic Standard for Disposable Hygienic Articles, Appendix C4: Antibacterial Performance Test Method of Dissolution Antibacterial (Inhibitory) Products Detects Antibacterial Antibacter...

Embodiment 2

[0027] (1) Dissolve 50ml of pentaethylenehexamine and 10ml of methyl acrylate in 50ml of methanol, react in an ice bath for 2 hours, then heat up to 60°C, remove the solvent methanol by vacuuming, then heat up to 150°C for 4h to obtain terminal amino groups For the hyperbranched polymer, add 15 g of decanoyl chloride, react in an ice bath for 30 minutes, and then purify to obtain the N-decanoyl-amino-terminated hyperbranched polymer.

[0028] (2) Silver nitrate is dissolved in deionized water to obtain a silver acetate solution whose mass concentration is 3.5g / l; N-decanoyl-amino-terminated hyperbranched polymer is dissolved in deionized water to obtain a mass concentration of 20g / l The N-decanoyl-terminal amino hyperbranched polymer solution;

[0029] (3) The silver nitrate solution that the mass concentration is 3.5g / l and the N-decanoyl-amino-terminated hyperbranched polymer solution that the mass concentration is 20g / l mix by volume ratio 1: 1, stir 10min at 80 ℃, That is...

Embodiment 3

[0031] (1) Dissolve 50ml of divinyltriamine and 10ml of methyl acrylate in 50ml of methanol, first react in an ice bath for 2 hours, then heat up to 60°C, remove the solvent methanol by vacuuming, then heat up to 150°C for 4h to obtain terminal amino groups Add 5 g of undecane bromide to the hyperbranched polymer, use potassium carbonate as a catalyst, react at 80° C. for 5 hours, and then purify to obtain an N-undecyl-amino-terminated hyperbranched polymer.

[0032] (2) Silver nitrate is dissolved in deionized water to obtain a silver acetate solution whose mass concentration is 3.5g / l; N-undecyl-amino-terminated hyperbranched polymer is dissolved in deionized water to obtain a mass concentration of 18g The N-undecyl-end amino hyperbranched polymer solution of / l;

[0033] (3) the silver nitrate solution that is 3.5g / l by mass concentration and the N-undecyl-amino-terminated hyperbranched polymer solution that mass concentration is 18g / l mix by volume ratio 1: 1, stir at 90 ℃...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a silver-containing antibacterial solution and a preparation method thereof. Dissolve the silver salt component in deionized water to obtain a silver salt solution with a mass concentration of 0.001-10g / l; dissolve the branched polyamine-based compound in deionized water to obtain a branched chain with a mass concentration of 0.01-50g / l Polyamine-based compound solution: mix silver salt solution and branched-chain polyamine-based compound solution at a volume ratio of 1:1 to 1:100, and stir at 10 to 100°C for 1 to 180 minutes to obtain a stable silver-containing antibacterial solution. The present invention adopts silver salt and branched chain polyamine-based compound to directly mix and react to obtain a stable silver-containing antibacterial solution, which is simple to operate, and the prepared silver-containing antibacterial solution has obvious cationic characteristics and has excellent adsorption performance on fiber materials; it also has excellent High temperature resistance and light resistance can be stored for a long time; salt resistance, acid resistance and alkali resistance are also better, but it is not easy to be compatible with anionic systems.

Description

technical field [0001] The invention relates to an antibacterial material, in particular to a silver-containing antibacterial solution and a preparation method thereof. Background technique [0002] Silver-based antibacterial agents have been widely used in medical dressings due to their excellent antibacterial properties, non-drug resistance and biocompatibility, such as nano-silver antibacterial dressings, silver ion antibacterial dressings, etc. It is used in burn and scald surgery, trauma surgery, and skin ulcers caused by various diseases, especially for persistent decubitus or other chronic infection wounds. [0003] There are two main methods for preparing silver-containing antibacterial dressings. One is to add silver-based antibacterial agents during the formation of antibacterial dressing base materials, such as adding silver-loaded phosphoric acid to alginate fiber spinning solution and chitin fiber spinning solution. Zirconium powder, silver-loaded silica powder...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B22F9/24B22F1/00
CPCB22F9/24B22F1/10
Inventor 张峰
Owner ZHANGJIAGANG NELLNANO TECH